强度与环境
彊度與環境
강도여배경
STRUCTURE & ENVIRONMENT ENGINEERING
2013年
4期
1-6
,共6页
韩丽%秦朝红%张忠%任方%靳荣华
韓麗%秦朝紅%張忠%任方%靳榮華
한려%진조홍%장충%임방%근영화
复杂结构%过试验%振动试验%有效性
複雜結構%過試驗%振動試驗%有效性
복잡결구%과시험%진동시험%유효성
complex structure%over-test%vibration experiment%validation
针对目前振动台试验中的“过试验”和“欠试验”现象，以星箭系统级结构简化缩比模型及卫星结构简化缩比模型为对象，从简单模型基础激励下的理论分析出发，研究了单卫星振动试验时界面响应及星上振动响应与系统级试验的差别，探讨了振动台试验出现天地不一致的原因及其合理应用范围。
針對目前振動檯試驗中的“過試驗”和“欠試驗”現象，以星箭繫統級結構簡化縮比模型及衛星結構簡化縮比模型為對象，從簡單模型基礎激勵下的理論分析齣髮，研究瞭單衛星振動試驗時界麵響應及星上振動響應與繫統級試驗的差彆，探討瞭振動檯試驗齣現天地不一緻的原因及其閤理應用範圍。
침대목전진동태시험중적“과시험”화“흠시험”현상，이성전계통급결구간화축비모형급위성결구간화축비모형위대상，종간단모형기출격려하적이론분석출발，연구료단위성진동시험시계면향응급성상진동향응여계통급시험적차별，탐토료진동태시험출현천지불일치적원인급기합리응용범위。
Rocket-satellite system level model and single satellite model are taken as the research object in order to study the over-test and under-test problems in vibration experiments. These two models are simplified as 3-DOF systems and the responses under base excitation are analyzed theoretically. Then the difference between system-level reverberant experiment and single satellite vibration experiment are studied. The reason of disagreement between flight and ground-testing is analyzed and the proper application of vibration experiments is discussed.
